Access on Demand on Wi-Fi Networks: the Impact of Dynamic Switching of Providers for the Mobile User

  • Mario E. Augusto UDESC
  • Edson S. Moreira USP

Resumo


With the access on demand the mobile device manages the handovers and might not need to have a service contract for connecting to a network. These features may improve or worsen the user access experience and cause some impacts related to, for instance, the received throughput, paid price and number of handovers. This paper presents the performance evaluation results of an access on demand environment with Wi-Fi networks compared to the traditional access (not on demand), through simulation. It also shows how the application, the speed of the mobile and the traffic of other users can influence the number of handovers, paid price and the total of received bytes by a mobile. The mobile device can prioritize price, received signal strength or load on the access point.

Referências

Augusto, M. and Moreira, E. S. (2009). Access on demand in ngn: a methodology for assessing the impacts of dynamic changes of wireless providers. In Proceedings of the 8th International Information and Telecommunication Technologies Symposium I2TS 2009, pages 254–257.

Aust, S., Proetel, D., Fikouras, N. A., Paupu, C., and Gorg, D. (2003). Policy based mobile ip handoff decision (polimand) using generic link layer information. In Proceedings of the 5th IEEE Int. Conf. Mobile and Wireless Communication Networks.

Kassar, M., Kervella, B., and Pujolle, G. (2008). An overview of vertical handover decision strategies in heterogeneous wireless networks. Computer Communications, 31:2607–2620.

Mapp, G., Cottingham, D., Shaikh, F., Vidales, P., Patanapongpibul, L., Balioisian, J., and Crowcroft, J. (2006). An architectural framework for heterogeneous networking. In Proceedings of the International Conference on Wireless Information Networks and Systems (WINSYS 2006), pages 5–10.

Mapp, G., Shaikh, F., Aiash, M., Vanni, R. M. P., Augusto, M., and Moreira, E. S. (2009). Exploring efficient imperative handover mechanisms for heterogeneous wireless networks. In NBiS, pages 286–291. IEEE Computer Society.

Medepalli, K., Gopalakrishnan, P., Famolari, D., and Kodama, T. (2004). Voice capacity of ieee 802.11b, 802.11a and 802.11g wireless lans. In Proceedings of IEEE Global Telecommunications Conference ? Globecom 2004, volume 3, pages 1549–1553.

Moreira, E. S., Cottingham, E., Crowcroft, J., Hui, P., Mapp, G., and Vanni, R. (2007). Exploiting contextual handover information for versatile services in ngn environments. In 2nd IEEE International Conference on Digital Information Management (ICDIM), volume 1, pages 506–512.

NGN (2004). General overview of ngn. ITU-T Recommendation Y.2001.

NOAH (2012). The no ad-hoc routing agent (noah) website. [link].

NS2 (2012). Network simulator ns2. [link].

Palazzi, C., Chin, B., Ray, P., Pau, G., Gerla, M., and Roccetti, M. (2007). High mobility in a realistic wireless environment: a mobile ip handoff model for ns-2. In Testbeds and Research Infrastructure for the Development of Networks and Communities, 2007. TridentCom 2007. 3rd International Conference on, pages 1–7.

Perkins, C. (2002). Ip mobility support for ipv4 – rfc3344.

Rizvi, S., Aziz, A., and Saad, N. (2010). An overview of vertical handoff decision policies for next generation wireless networks. In Circuits and Systems (APCCAS), 2010 IEEE Asia Pacific Conference on, pages 88–91.

Sharma, S., Ningning, Z., and Chiueh, T. (2004). Low-latency mobile ip handoff for infrastructure-mode wireless lans. Selected Areas in Communications, IEEE Journal on, 22(4):643 – 652.

Symington, A. and Kritzinger, P. (2009). A hardware test bed for measuring ieee 802.11g distribution coordination function performance. In Modeling, Analysis Simulation of Computer and Telecommunication Systems, 2009. MASCOTS ’09. IEEE International Symposium on, pages 1–7.

Wang, H., Katz, R., and Giese, J. (1999). Policy-enabled handoffs across heterogeneous wireless networks. In Mobile Computing Systems and Applications, 1999. Proceedings. WMCSA ’99. Second IEEE Workshop on, pages 51–60.

Yokoyama, R. S., Kimura, B. Y., Lopes, R. R. F., and Moreira, E. S. (2008). Uma abordagem ciente de contexto para handovers orientados a servios em ambientes ngn. In 7th International Information and Telecommunication Technologies Symposium (I2TS’2008).

Zhu, F. and McNair, J. (2006). Multiservice vertical handoff decision algorithms. EURASIP Journal on Wireless Communications and Networking, 2.
Publicado
16/07/2012
AUGUSTO, Mario E.; MOREIRA, Edson S.. Access on Demand on Wi-Fi Networks: the Impact of Dynamic Switching of Providers for the Mobile User. In: WORKSHOP EM DESEMPENHO DE SISTEMAS COMPUTACIONAIS E DE COMUNICAÇÃO (WPERFORMANCE), 11. , 2012, Curitiba/PR. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2012 . p. 15-28. ISSN 2595-6167.